Furnace.



W. A. GARVENS.

FURNAGE.

APPLICATION FILED FEB. 3, 190a. QQQ 5I3Q I v Patented 001 6, 1908. V I I 2 SHEET$SHBET 1. I.

. 4 Til- A TTORNEY.

W. A. GAR-VENS.

FURNACE.

. APPLICATION FILED THE. 3, 1908. I 0 ,5 3 Patented Oct. 6, 1908.- v z 8HEE'I;SSEEE'1 2 A w yv I INVENTOR. WIN/am [Ma/Wins ATTORNEY.

W I TNESSES.

-L x A I I "Theobject ofmyinvention is'to'construct- 'WILLIAMlAQ ARVENa-OF .sTi Louis, Mrssounr) ASSIGNOR or onn-roun'rn T .IQHN P.

PA rENT QFFICQE. I;

- .McDONOUGH ors'r. LOUIS,IMISSOURI.

j rimmers.

iTo dllwhom it may concern." @I

"Be" 't known that l, *WrniamM GA RyENs',

a-citizen of the Uni-tedStates', residing at 'St. Louispstate oflvlissourifhave inven'ted-cerytainynew useful, Improvements in Farj. ."n'aces, of-Which the Ifollow'ing'is *a full, clear,

1 -andexaetdeseription:referenceibeing hadrto form" of my. -furnace; Fig; 2 is a horizontal I v 3 i'savnerti'cal transverse sectionf(parts being itiona ldst ail through1theinjec toron the line Q rand- Ff G-is'aside elevation f 'amodifie' form"offurnace. a a

a 1 furnace for general-commercial and industrial ,purposes, which shall 'efie'ctively con? sume all the fuel with which thesame is nent 'tion of "all smoke, gases, and' carbonaceous I matter so that a-maximuimefficiencyis th" v 5 result and. no fuel is wasted. i I Such: afurn'ace may be installed with anyboiler orsteam generator; may. bo-em 'loyedfori-the burning of garbage, waste, -an =the'like, may su ply heat for' the manufactureof'brick an'dt' "for dlrying purposes andinfact'may be util- 40 ized inyany of'the known: industrialartsl The advantages thereof will he better i ap- Pawnt from d a l descriptiongef th i Vention, WhicliliS as'followsgw exitflue'all wellunderstood inthe art. Dis:

posed "in'the sidewalls ofthe casing are flues or passages] .1 1', which communicatefwith sinular. superposed parallel .passagesior flues 1' ,1 through connecting .passagesfi, 2.

The rear ends of the passages 1'1 0 on into the chamber'of a rear hollow deflecting wall I 's 'eeamt'bnhamsters Patent. Irfiiph'caticn filed February 3,1908. SeriaI No. 414,066; v

i 3 located more fully set forth the specification: and

I the drawings, F'gured is a vertical-ilon-f =g'itud1nal section online '1 1:of-'Fig. 2 of one 'broken away) onzth'e'iline' 3+3 of Eng. 2; Fig. 1 :isia-vertical'transyerse section: on the line 4+4" of Fi 1 -llig. 5"is an enlarged-horizontal seci char fed,--themeans employed being emi'; yada'pted to-insure the-perfect" consumpi Patented Oct. 6, 1908.,

'at'the 'lbase1of the exit'flue D the inner face ofthe wall- 3 being rovided with -an intakeopening or slot 4., 'sposed along the length of each'passage 1- and establishing 1 communication between said; passage and the combustion chamber arerseries 'of flaring inf. ta e openings 5, 5, similar'openingsfi': 5' es- Q98: liShing communication between the assageways L1] and the combustion I them I r; The-forward. ends of the passageways 1 1, open intd-tthe chamber of the hollow front )archedand,supportedfon a post I), the said 'wall'rhaving-dlscharge openings a a a, which 'return the unconsumed products of 'combus eachfof the passage-ways 1, 1,-L1s a steam (or furnace similarly' to the ass age'-ways 1 1.

' and communicating Wit 7 the combustion chamber similarly to the passage-ways'l, 1. The 'operationof the furnace, "which as above stated, is intended to consume allzthe -.ayailable combustible matter on the gratebai's, is as follows: Referring more, particularly to 1, 2-and 5, the-products of comby the plain arrows',-Fig. 1.; The majority of furnaces, particularly those burning soft.

I I I I I 1 I coal throw ofi vast volumes of smoke, and Referringto-the drawings, and particularlyto Figs. l e-to 5 inclusiye', F,"re resents'the furnace---casing" orinclosu're,Gj t e' grate'; B,

the" fire-box, W, the bridgewall, and C, the combustion chamber; and 'D, the stack or those burning fuel not :partic'ularly disposed to smoke; "permit "a1 large percentage of the .bon, andother unconsumed constituents to" e's'cape through, the stack,' so that only a IutiIiZed -By-means of my invention however, the, inajority' of such unconsumed products is returned into the fire+box through the instrumentalityj of the injector (of whichthere. maybe any number). .The spray'orjet' of the-injector'which is directed toward deflecting HbKwhich is preferably ibl 7 f ion' in'togth'e fire-bo above-the grate bars as I Pr sently-to be described; -Co'6 perating with n: I

'the-terminals ofsuchpi 'ieslm befl'tapping the II bustion obviously will take the course shown Y available hydrocarbon gases, hydrogen; we 1 small percent. or the heat units of the fuel is the firebox end of the passage-Way 1 will induce a current in the said passage-way and .likewrsein the passage-way 1", drawing in the unconsumed products referred to, not only thro ugh the intake openings 5, 5 on the sides ofithe furnace, butthrough the intake 14 in .the rear deflecting wall, and delivering them into the chamber ofthe front hollow .deflect-in'g wall "6,. whence. they are discharged and returned to the firebox through the openings a a a, all as fully indicated by the-feathered arrows inFigs. 1 and 2. 'Such portions of the unconsumed products not so or super-heated in passing through the chamber of the'frontdeflecting wall located above: the grate-bars.

I am therefore able to consume the. majority of the otherwise unconsumed products without the necessity of admitting cold air either into the combustion chamber or firebox, that reaching the latter being admitted through the grate and the incandescent fuel resting thereon so that it becomes highly heatedby the time the available oxygen. constituent thereof is called into requisition to combine with the products escaping through the opening a a a.

- combustion chamber, the furnace being pro vided at the sides with intercommunicating said firebox, and with intake openings along A furnace of the character here described maybe employed in any of the industrial arts, and is particularly desirable as a boiler furnace. By superposing the passage-ways. I above the passage ways 1, the products are taken at different levels so that the eflis 'ciency of the system is increased, I may of course substitute any, equivalent for the injector as-fully understood in the art, for producing a flow of the products'in proper direction. l

Having described my invention What I claim is 1 1. Inlafurnace having afire-box and a passageways disposed at different levels ,and

- also provided with common discharge openings into the fire box for establishing communication between the passageways and the length of said passageways, said intake openings establishing communication between the passageways and the combustion chamber, whereby a portion of the un'con:

sumed products are free to return from the combustion chamber to the firebox, and devices for effecting such returnof said products, substantially as set forth.

2. In a furnace having afire-box, and a combustion chamber, an exit ilue leading from the combustion chamber, a hollow deflecting wall at the base ofthe exit flue having an intake opening commumcatlng with thecombustion chamber, the furnace being provided at the sides with passageways lead ing from the chamber of said deflecting, wall to. the fire-box, said passageways having in take openings disposed along the length thereof for establishing communication be tween the passageways and the combustion chamber, and an injector for returning a portion-of the products from the combustion chamber into the fire-box, substantially as set forth.

. 3. In a furnace having a fire-box and a combustion chamber, an exit flue leading from the combustion chamber, a hollow defleeting wall at the base of the exit flue, a hol low deflecting wall above the fire-box, the said defiectingwvalls being respectively provided with intake openings and discharge openingsgthe furnace being provided at the sides with passage-ways establishing intercommunication between-the chambers of the respectivehollow deflecting walls, said passage-ways having intake openings establishing communication between the passage-ways and the interior of .thecombustion chamber at different levels in the latter chamber, and injectors located the passage-ways and inducing a current therein in proper direction to return the products from the combustion chamberthrough the chamber of the deflecting wall at the base of the exit fine, and

through the passage-ways directlyfrom said combustion, chamber, into the chamber of the deflecting wall above the grate and into the fire-box, substantially asset forth.

. In testimony whereof I aflix my signature, in presence of two witnesses. WILLIALI A. GARVENS.

Witnesses;

EMIL S'mnmr, Jos. A. MICHEL. 

